How many days a year do you effectively drive 500 km PER DAY ?
Cause only on these days you will have to charge for 20-30 minutes while your petrol car is filled up in 3 minutes.
But hey ... 500 km means you probably drove 4-5 hrs ... a 20-30 minutes break is more than recommended in that case.
Go drink a coffee read something on your phone and after lets say 25 min, enjoy the rest of your trip.